defence bond

例句：

1. 1. The government has issued a defence bond to raise funds for the war effort.
   政府已经发行了防御债券，为战争努力筹集资金。
2. 2. The company is seeking investors who are interested in investing in defence bonds.
   该公司正在寻求对投资国防债券感兴趣的投资者。
3. 3. The defence bond market has been volatile recently due to geopolitical tensions.
   由于地缘政治紧张局势，国防债券市场近期波动较大。